Interesting Engineering on MSN3h
Nighthawk: NASA plans massive Mars helicopter to scan ancient volcanoes for lifeNighthawk would fly to altitudes of up to 4,920 feet (1,500 meters) above the Martian average, covering distances of up to 1.86 miles per flight.
Valdemar’s Day is when proud Danes remember the Danish flag’s rich history and origin on 15 June every year. Penned by the ...
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